已知函数
.
(1)求函数
的最小正周期;
(2)在锐角三角形
中,角A、B、C所对的边分别为a、b、c,若
,
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e449d602223d82847e9a6c11cda0302.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在锐角三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9c90929ab221d6df71b222f3cd8ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c5cd6ce30ac70cd343334139c1a478.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
更新时间:2021-11-28 21:30:07
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【推荐1】已知函数
.
(Ⅰ)求
的值及函数
的最小正周期;
(Ⅱ)求函数
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c40f7e594243e37fb00701cbe79a6e5.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149cbab71afe5e95a74d311929f023b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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【推荐2】已知函数
其中
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函数
图象的对称轴.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca5ae3d07db4e241ce20f11b625c1da.png)
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【推荐3】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e92f11938258bd0fcf602451898fe6a.png)
(1)求函数
的最小正周期和单调递增区间;
(2)求函数
在
上的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e92f11938258bd0fcf602451898fe6a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd65d7c5e979706d391163aee2c18cb2.png)
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【推荐1】若
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【推荐2】已知函数
.
(1)若先将函数
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(2)设
,则是否存在实数
,满足对于任意
,都存在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee24f1842a68b15b50b371c858b226fc.png)
(1)若先将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe0e9ee62f5b9c11cb646f6ec5d2592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b155f5cb2c9dd78d9a272619af64597b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c2163d9e9d9d90e4b04fa1b4f316ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6154e00013d9dee84c0e941f676ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐1】已知函数
.
(1)求
的单调递减区间;
(2)求
图象的对称中心的坐标;
(3)若
,
,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553ed71885b276cee96742b1916e938e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a36e4728c1fb2de18f3e388a56e7a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd4d809facb6c5ce594e86fcc1d1a3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
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【推荐2】已知函数
.
(1)求函数
的最小正周期和单调递增区间;
(2)当
时,试求函数
的最大值,并写出取得最大值时自变量
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d756368009f8640777d18e616df88476.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4908e3b4e523c042732ccb7c215aac99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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【推荐1】已知
的三个内角A、B、C的对边分别为
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07fc497af30409cf3ea0d336534a1a2b.png)
(1)求角B的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11cb03884f5cb554a50e64155503a80e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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【推荐2】在
中,内角
所对的边分别是
,已知
.
(1)求角
;
(2)设边
的中点为
,若
,且
的面积为
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099dc02e222ac6eaba24bfd17e35582d.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)设边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783d6adfa8fb1352679c5185258d842a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ca820a456491348e72587e4fe10bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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